Enlaces interesantes sobre torres.

Torres del ingeniero y arquitecto Vladimir Shukhov

• https://en.wikipedia.org/wiki/Shukhov_Tower_on_the_Oka_River
• https://architectuul.com/architecture/oka-shukhov-towers
• https://www.shukhovtower.org/
• https://mamm-mdf.ru/exhibitions/the-hyperboloid-of-engineer-shukhov/
• https://en.wikipedia.org/wiki/Hyperboloid_structure
• https://en.wikipedia.org/wiki/Shukhov_Tower_in_Polibino

Pilones de Cadiz

• https://en.wikipedia.org/wiki/Pylons_of_C%C3%A1diz